remcos | aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38

Analysis

max time kernel
60s
max time network
62s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/09/2026, 20:43

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General

Target
aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe
Size 1.5MB
Sample260902-zh2ryasbpb
SHA256 aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38
MD5 039dc1dcb40b327315406ed7f7a71d4e
SHA1 ea2585a68e889feb1c5c22472f1defc6bed9dbb5
SHA512 6a76a00ee5945019abb6970d57e68ecee4d620929a0f3284b1b0a14290992ebdb77354100d897bf464fcdb86419155b1a126fc546ddc2b11f0c1c0587ade2796
SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0FO:+Tg3ZOcuUL3xAx/8b2S7Z0k
TLSH
T1057523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A7E3A267A820A1C
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

chinemerem discovery execution remcos persistence rat

Malware Config

Extracted

Family

remcos

Version

2.2.2 Pro

Botnet

chinemerem

remcoss.onmypc.org:3765

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
r-8ET8H0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Executes dropped EXE 2 IoCs

pid	Process
4452	AboutSettingsHandlers.exe
5756	AboutSettingsHandlers.exe

AutoIT Executable 6 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/1652-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral2/memory/1652-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral2/memory/1652-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral2/memory/4452-34-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral2/memory/4452-36-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe
behavioral2/memory/4452-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1652 set thread context of 4696	1652	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe	89
PID 4452 set thread context of 5756	4452	AboutSettingsHandlers.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AboutSettingsHandlers.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4152	schtasks.exe
5076	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4696	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1652 wrote to memory of 4696	1652	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe	89
PID 1652 wrote to memory of 4696	1652	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe	89
PID 1652 wrote to memory of 4152	1652	aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe	90
PID 4452 wrote to memory of 5756	4452	AboutSettingsHandlers.exe	94
PID 4452 wrote to memory of 5756	4452	AboutSettingsHandlers.exe	94
PID 4452 wrote to memory of 5076	4452	AboutSettingsHandlers.exe	96

C:\Users\Admin\AppData\Local\Temp\aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe
"C:\Users\Admin\AppData\Local\Temp\aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1652
- C:\Users\Admin\AppData\Local\Temp\aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe
  "C:\Users\Admin\AppData\Local\Temp\aad229e54557a953b489eae1aca35840ca18ec9bb2f734ef0ba7a2c959d71e38.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4696
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4152

C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
  2⤵
  - Executes dropped EXE
  PID:5756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5076

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

AboutSettingsHandlers.exe

Path C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
Size 1.5MB
SHA256 ce3389cbcdf60df8045b55400faecc3f42ec1edf545c30c6b8d9767209447013
MD5 674777008f85dc0ad98002a6a5f4d5f3
SHA1 eac778639e45fcaf2149e5ed02eaad68d50c5071
SHA512 2ebbeecab2dd3900adae3dfc71165aba9bbb16826da053ede763f786da725da0c1050e7d691952c20af5c158530cb3fc529fc73f8eacb14df512a0463340e1d8
SSDEEP 24576:zaTg0wZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0F8:+Tg3ZOcuUL3xAx/8b2S7Z0S
TLSH
T1317523FA8E706892D5BD463205AF0F6D75F54FF37A14AC4311713D2A7E3A267A820A1C
MD5 SHA1 SHA512 SSDEEP TLSH

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logs.dat

Path C:\Users\Admin\AppData\Roaming\remcos\logs.dat
Size 79B
SHA256 dc62c13c10077db493b09e7b42c236182cb1eb1788dda163e35eb3b1625db763
MD5 c7b980bebd91f3e3fa581258d25bb102
SHA1 577d92747d284b0ee9615d8187ef3ab33a82ab88
SHA512 801d591bf8d75ec5caabcbd18599221c9758ec4cf4b95329a5874b992d43403dec9a4413c10411730a8049489ae2307d3dc999d235656b59db9974b3d8b28f87
TLSH
T120A012C6C2208982001029E0644D3297A00104503266051750015F094348001B9C0151
MD5 SHA1 SHA512 TLSH

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memory/1652-19-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/1652-1-0x0000000000990000-0x0000000000993000-memory.dmp

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memory/1652-2-0x0000000003030000-0x0000000003031000-memory.dmp

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memory/1652-0-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/1652-21-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/1652-15-0x0000000000990000-0x0000000000993000-memory.dmp

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memory/1652-16-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4452-24-0x0000000000DC0000-0x0000000000DC3000-memory.dmp

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memory/4452-34-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4452-36-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4452-38-0x0000000000DE0000-0x0000000000F69000-memory.dmp

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memory/4696-14-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/4696-11-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/4696-10-0x00000000000C0000-0x00000000000E0000-memory.dmp

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memory/4696-3-0x00000000000C0000-0x00000000000E0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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